A series of hill repeats in and out of an extinct volcano. It hasn't erupted in thousands of years, so the only thing that will start burning today will be your legs! The aim on each lap is one FTP climb and one sprint effort at over your max aerobic power (MAP) level.
Don't have FulGaz already?
Download FulGaz now and ride The Volcano on your home trainer. You'll then feel every change in gradient and see every turn in up to 4K video.